Threaded flange for installation into a container head



FIG. 1 is a perspective view of a threaded flange for installation into a container head showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, the side elevational view being the same;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a front elevational view thereof, in full section, as viewed along line 5—5 in FIG. 2. 

The ornamental design for a threaded flange for installation into a container head, as shown and described. 